Science

Running 170 kilometres over mountainous terrain caused people's red blood cells to accumulate more age-related damage than those of less ambitious athletes

The latest Jesus and Mo strip, called two, is an apparent update:

This one is updated and re-named, because the world population has increased by more than 2 billion since it was published.

Well, the barmaid is an atheist, so she’d surely lose the argumentum ad populum!  On the other hand, I have to laugh when I see people claim that a religion is “true” because it has so many adherents.

 

Ocean waves are a vast and steady source of renewable energy, but capturing their power efficiently has long frustrated engineers. A researcher at The University of Osaka has now explored a bold new approach: a gyroscopic wave energy converter that uses a spinning flywheel inside a floating structure to turn wave motion into electricity. By harnessing gyroscopic precession—the subtle wobble of a spinning object under force—the system can be tuned to absorb energy across a wide range of wave conditions.

When we think of ice on Mars, we typically think of the poles, where we can see it visibly through probes and even ground-based telescopes. But the poles are hard to access, and even more so given the restrictions on exploration there due to potential biological contamination. Scientists have long hoped to find water closer to the equator, making it more accessible to human explorers. There are parts of the mid-latitudes of Mars that appear to be glaciers covered by thick layers of dust and rock. So are these features really holding massive reserves of water close to where humans might first step foot on the Red Planet? They might be, according to a new paper from M.A. de Pablo and their co-authors, recently published in Icarus.

Researchers have uncovered more than a thousand previously unknown tectonic ridges across the Moon’s dark plains, showing the Moon is still contracting and reshaping itself. These features are among the youngest geological structures on the lunar surface. Because they form through the same forces linked to past moonquakes, they could signal new seismic hotspots.

The Milky Way's center is densely-packed with stars and there should be abundant pulsars there. But for some reason, we can't find them. New research presents a candidate pulsar in the GC. It's close enough to the Milky Way's supermassive black hole that it can test Einstein's General Relativity. But first, it has to be confirmed.

NASA said Tuesday it will now target a March launch of its new moon rocket after running into exasperating fuel leaks during a make-or-break test a day earlier.

New research presents a timeline for recent (astronomically speaking) events in the Saturnian system. It shows that Titan collided with a proto-Hyperion, and the collision smoothed Titan's surface while some of the debris accreted onto a new Hyperion and also created Saturn's rings. The research can also explain some of the Saturnian system's other unusual characteristics.

A technology that uses a coiled wire to electrify aerosols has boosted snowfall amid a drought in the western US, according to the company developing it, but the results haven't convinced other scientists

An ultrastable laser could enable extremely precise timing and navigation on the moon, and the cold, dark craters near the lunar poles would be the ideal location for it

SpaceX founder Elon Musk now says he wants to build a city on the moon before building a city on Mars. Is either scenario realistic? In the latest episode of the Fiction Science podcast, biologist Scott Solomon, the author of a new book titled "Becoming Martian," does a reality check on humanity's prospects for living on other worlds.

The evolution of human hands is one of the most important – and overlooked – stories of our origin. Now, new fossil evidence is revealing their pivotal role

A giant virus encodes part of the protein-making toolkit of cells that gives it greater control over its amoeba host, raising questions about how it evolved and how such beings relate to living organisms

Results are coming out from the samples returned by China’s Chang’e-6 sample return mission to the far side of the Moon. They offer our first close-up look at the geology and history of the far side, and a recent paper published in Science Advances from researchers at the Chinese Academy of Sciences has very interesting insights about the impact history of the Moon itself, and even some for the solar system at large.

As I am out of photos, and readers are withholding theirs, I once again steal the lovely photos of Australian Scott Ritchie from Cairns, whose Facebook page is here. Scott’s captions and IDs are indented, and you can enlarge his photos by clicking on them. .

I went to Melbourne during the middle of January to visit friends. Of course, birds are my feathered friends. This report cover a visit to the WTP, Western Treatment Plant, at Werribee, Victoria. These names pass mythically from the lips of Australian birders. I’ve been there before and really enjoyed it, but this past trip was wild. WTP is a series of quite large, secondary sewage treatment ponds, and lagoons. These abut along the great Southern Ocean and you get this wonderful interaction of freshwater and saltwater wetlands and associated birds. These are used, particularly in our summer, as overwintering sites for migratory shorebirds. But there’s a lot of resident waterfowl and waders there too. The WTP is so valued that you have to have a key to the gate for access to the site. Fortunately, my friend David was a key-carrying twitcher.

The weather was crazy, with 45 KPH winds. One of the first things I discovered was that strong winds can really mess with a telephoto lens. My lens was being buffeted by the gusty, easterly winds to the point where I had to remove the lens hood to stabilise the camera. But a few interesting things happen because of the wind. It was a great opportunity for BIF shots; birds in flight. Birds generally take-off and land into the wind, and because it was so strong, they were moving quite slowly. So I got nice shots of normally very fast birds such as terns and sandpipers as they came into land. Attached are some fun pics.

The next day I did a short walk through Banyule Flats Reserve, an urban Melbourne wetland. The highlight was to see the oh so cute Owlet Nightjar, as well as a family of Tawny Frogmouths. Shout out to Lyn Easton for leading the tour.

A Black Swan Beach. The high winds packed the east facing beach with seagrass. And the Black Swans [Cygnus stratus] made for the buffet:

A beach of Blacks Swans, necks writhing like snakes:

Amazing!

“Ahh, now that feels good.” An Australian Spotted Crake [Porzana fluminea] enjoys the breeze up its bum:

“Bugger off!” But is not happy with the hordes of shore flies:

An immature Black-shouldered Kite [Elanus axillaris] gives us the eye:

Whiskered Terns [Chlidonias hybrida] cruised flew slowly against the wind, providing good views for the camera:

. . . and another:

A Black Kite [Milvus migrans] swings down to pick up a dead little bird that have been by a car:

A large flock of Australian shelducks [Tadorna tadornoides] into the WTP. It was great to see large numbers of waterfowl darken the skies:

I had fun shooting small short birds, as they say, coming into land against the wind at adjacent pool. This is a Rednecked Stint [Calidris ruficollis]:

And here comes a Sharp-tailed Sandpiper [Calidris acuminata]:

A family of Tawny Frogmouths [Podargus strigoides] greet the day at Banyule Flats Reserve:

But he poses stoically, “You can’t see me!”  Frogmouths sit still, imitating dead branches and stumps:

A bit of a loose feather gives him away:‘

 

An Owlet-Nightjar [Aegotheles sp.] peaks out of his hole hollow. He stared at all the photographers down below. We must’ve started him because then he just disappeared. But we waited and waited:

“Come on, take your pictures!” He suddenly popped up, posing nicely:

Using local resources will be key to any mission to either the Moon or Mars - in large part because of how expensive it is to bring those resources up from Earth to our newest outposts. But Mars in particular has one local resource that has long been thought of as a negative - perchlorates. These chemicals, which are toxic to almost all life, make up between 0.5-1% of Martian soil, and have long been thought to be a hindrance rather than a help to our colonization efforts for the new planet. But a new paper from researchers at the Indian Institute of Science and the University of Florida shows that, when making the bricks that will build the outpost, perchlorates actually help.

Scientists scanning the heart of the Milky Way have spotted a tantalizing signal: a possible ultra-fast pulsar spinning every 8.19 milliseconds near Sagittarius A*, the supermassive black hole at our galaxy’s core. Pulsars act like incredibly precise cosmic clocks, and finding one in this extreme environment could open a rare window into how space-time behaves under intense gravity.

Hearing a sound while working on a complex puzzle, and then hearing it again during sleep, helped lucid dreamers better tackle the problem the next day

Enshittification, also known as crapification and platform decay, is a process in which two-sided online products and services decline in quality over time. As some of you may be aware, I was an Infectious Disease (ID) physician for almost 40 years, retiring 3 years ago. My practice was almost entirely concerned with taking care of patients in several acute care hospitals. So […]

The post MD Enshittification first appeared on Science-Based Medicine.

Quantum key distribution promises ultra-secure communication by using the strange rules of quantum physics to detect eavesdroppers instantly. But even the most secure quantum link can falter if the transmitter and receiver aren’t perfectly aligned. Researchers have now taken a deep dive into this often-overlooked issue, building a powerful new analytical framework to understand how tiny beam misalignments—caused by vibrations, turbulence, or mechanical flaws—disrupt secure key generation.